export function createUUID() {
    let s = [];
    let hexDigits = "0123456789abcdef";
    for (var i = 0; i < 36; i++) {
        s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
    }
    s[14] = "4";
    s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);
    s[8] = s[13] = s[18] = s[23] = "-";
    let uuid = s.join("");
    return uuid;
}

/**
 * ?????????
 * @param {*} max 
 * @param {*} min 
 */
export function randomInt(max, min) {
    min = min || 0;
    randomInt.seed = (randomInt.seed * 9301 + 49297) % 233280;
    let rand = randomInt.seed / 233280.0;
    return min + ~~(rand * (max - min));
}
randomInt.seed = 200;